End-thrust-resisting means for bearings.



PATENTED AUG. 21, 1906.

J. A. PERKINS. END THRUST RESISTING MEANS PORBEARINGS.

APPLICATION FILED NOV. 11, 1903.

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5 5 ed by NT i STATES PATEN anion.

J ULlUS A. PERKINS, OF OMAHA, NEBRASKA, ASSlGNOR TO MOFFETT BEARTNGUOMPANY, OF COUNCIL BLUFFS, IOWA.

saiowa-musr-m-zsl srme MEANS. Foe esasieee.

PatentedAug'. 21, race Application filed November 11,1903. Serial No. 180.727.

-T0 a/ZZ whom/it inay concern:

Be it known that I, JULIUS A. PERKINS, a citizen of the United States, residing at Omaha, in the'county' of Douglas and State of Nebraska, have invented an Improvement in End-Thrust-Resisting Means-for Bearings, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the-drawings representing like parts.

This invention has for its object a novel construction of means for resisting end thrust in bearings, especially bearings such .as shown in United States Patent No.

- bodiment of my invention shown in the ac preferredcompanying drawings, showing forms of construction, I employ 'etween the main ring or track (as-I prefer. herein to designate the so-called ring of said patent) and the end of the tenon of the axle a lurality of sets of balls, each in its own he -race, one set of said balls traveling over said main track, the second set traveling over a plane surface parallel with that part of'the main track with which the set of balls coacting with it contact. These balls constituting antifriction means are shown as applied to two ball-races made at oppositesides of an end-thrust plate disconnected from the hub or box and surroundingthe axle. The main track serves the purpose of a cage-controller, while the second set-of balls contacts with a plane surface shown as a track sustained by an extension of the box.

Figure 1 shows in section a sufiicient portion of ahub or box and part of an axle with my improvements added to enable my invention to be understood, and Fig. 2 shows a modification to be described.

The axle A and its enlargement A, over which may roll usual short bearing-rollers held in cages, (not shown, but ful y illustrated in said patent,) there bein preferably two such enlargements on the ax e surroun the hub or box A, the track a at the extremity of the box, and the nut'B, applied to the threaded tenon B, are and may be shaped as fully shown in said patent. Herein the track a is mounted loosely in the hub or box end. In Fig. 1 the axle is reduced somewhat in diameter at the inner end of the tenon, as at a, leaving a shoulder a A screw-thread at the outer end of the hub or box receives athreaded extension A that is closed by a removable cap E, that may be used for theexclusion of dust from the box or hub. The inner end of the extension is shown as substantially abutting the outer face of the track a. The nut B is surround-- ed by end-thrust means, which in practice will include a plurality of balls If. These balls are contained in separate ball-races shown as formed in an end thrust plate, one set, as 12 of said balls traveling over the main track a, which also serves the pur oseof a cage-controller, the'other. or secon set of balls traveling over a plane surface at. right angles to the longitudinal axis of the axle and parallel with the face of said main track. The plane surface or second track a is shown as detached from, but as surrounding, the axle,-so asto move with the hub or box.

In the particular construction shown in Fig. 1 the series of balls 12 contact with the main track a, and the end-thrust plate b is maintained in working position by a shoulder (1 on the nut 3;, While the series of balls b are made to' contact with and roll over the second track 0, shown as seated in an annular recess or o'cket c in the box extension.

In the mod' cation, Fig. 2, themain track a, is shown wider than in Fig. 1 and as located farther within the end of the hub or box, and theball-race having the balls running on the main track is of less diameter instead of the greater diameter, as in Fig. 1, and the second track (P, the e uivalent in function and purpose of the trac b is sustained by its eiigagement withscrew-threads at (1 the cap x In Fig. 2 the shape ofthe nut D on the tenon differs slightly from the nut B, the 'main track is made wider, and the ball-race next the main track occupies a position nearest the axle.

I believe that I am the first to provide for use with a hub or box having at its end a main track that alsoserves the purpose of a cage controller, a plurality of sets of balls each moving in a separate ball-race, one set of saidballs traveling over said main track, while the second set of balls ,travels over a plane being screwed into said extension.

KID

surface parallel to said main track and constituting a second track. I further believe that I am the first to provide an end-thrust plate with antifriction means at both sides,

and hence my invention is not to belimited to the exact construction shown of the endthrust means or to the particular location with relation to each other of the annular grooves containing the antifriction devices.

Thetracks sustained by or through the box rather than by or through the tenon of the axle or its nut are set in place in the hub or box and'in the cap and are held therein frictionally instead of being fixed to the hub or box and the cap, and said tracks may be turned in the hub or box and in the cap, and

, consequentlyI designate said tracks as being applied loosely to the hub or box or the cap, and said tracks may be rotated in saidhub or box or said cap,

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. In a roller-bearing, a hub or box, a main tracklocated at the end of said hub or box and serving as a cage-controller, an axle having a tenon, combined with a ball-sustainer having grooves at its opposite sides, a second track Y and balls located in the grooves of said sustainer, one set of balls contacting with one and the other with the other track.

2. Ina roller-bearing, an axle,'a 'hub or box, two tracks within said box at one end, and an interposed end-thrust plate having annular grooves located at different dis tances from the center of said plate, said grooves receiving each a set of balls, one set of balls contacting with one of said tracks and the other with the other of said tracks.

parallel with the main track,

3. In a roller-bearing, a hub or box, an

5. In a roller-bearing, a, hub or box, an

axle having a tenon, and two tracks disoon: nected from the axle and maintained separated one from the other with an open space between them, combined with end-thrust means comprising a plate having annular grooves at its opposite sides and interposed between said tracks, and a series of balls in each of said grooves, said balls contacting with the inner sides of said tracks.

6. In a-roller-bearing, an axle having a tenon, a hub or box, two tracks separated one from the otherand' sustained thereby, combined with an end-thrust washersurrounding the tenon of the axle and interposed between said tracks, said washerhaving antifrictionm'eans coacting with the inner sides of said tracks.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

\ JULIUS A1 PERKINS.

Witnesses:

GEO. W. GREGORY, EDITH 'M..ST0D1)ARD. 

